dubbo学习记录（二）

HK仅輝

IDEA新建一个项目，创建三个模块
注意：这里同样要先启动 zk
一、dubbo-api （单纯的maven模块）
在这个模块中创建一个接口。

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public interface DemoService {
    String sayHello(String name);
}

二、dubbo-provider （springboot 模块）
在启动类同级创建一个包，然后实现api接口 ，这里使用dubbo提供的@DubboService注解

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import com.dubbo.DemoService;
import org.apache.dubbo.config.annotation.DubboService;

@DubboService(version = "1.0.0")
public class DemoServiceImpl implements DemoService {
    @Override
    public String sayHello(String name) {
        return "Hi,"+name;
    }
}

三、dubbo-consumer （springboot 模块）
在启动类中，加入api接口类这里同样要用dobbo提供的 @DubboReference 注解，然后调用接口方法

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import com.dubbo.DemoService;
import org.apache.dubbo.config.annotation.DubboReference;
import org.springframework.boot.ApplicationRunner;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.annotation.Bean;

@SpringBootApplication
public class DubboConsumerApplication {

    @DubboReference(version = "1.0.0")
    private DemoService demoService;
    public static void main(String[] args) {
        SpringApplication.run(DubboConsumerApplication.class,args);
    }

    @Bean
    public ApplicationRunner runner(){
        return args -> System.out.println(demoService.sayHello("dubbo"));
    }
}

springboot 依赖

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    <dependencies>
        <dependency>
            <groupId>com.api</groupId>
            <artifactId>dubbo-api</artifactId>
            <version>1.0-SNAPSHOT</version>
        </dependency>
        <dependency>
            <groupId>org.apache.dubbo</groupId>
            <artifactId>dubbo</artifactId>
            <version>3.0.10</version>
        </dependency>
        <dependency>
            <groupId>org.apache.dubbo</groupId>
            <artifactId>dubbo-dependencies-zookeeper</artifactId>
            <version>3.0.10</version>
            <type>pom</type>
            <exclusions>
                <exclusion>
                    <groupId>org.slf4j</groupId>
                    <artifactId>slf4j-log4j12</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
        <dependency>
            <groupId>org.apache.dubbo</groupId>
            <artifactId>dubbo-spring-boot-starter</artifactId>
            <version>3.0.10</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
    </dependencies>